Cuff-pin.



No. 897,407. PATENTBD SBBT. 1,1903. A. ROBERTSON. CUFF pm.

APPLICATION FILED MAR. 4;,1908.

WITNESSES. I INVENTDR.

ATTORNEY.

unrrnn STATES PATENT entice.

ANDREW ROBERTSON, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO WAITE THRESHER COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

CUFF-PIN.

Application filed March 4, 1908.

To all whom it may concern:

Be it known that I, ANDREW ROBERTSON, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Cuff-Pins; and I do hereby declare the following specification, taken in connection with the accompanying drawings, forming a part of the same, to be a full, clear, and GX- act description thereof. 7

The invention relates to those articles of jewelry which are known as cuff-pins and has for its object to provide a pin of this character with means for strengthening the body portion of the back plate of the pin at the point where the greatest strain comes in the operation of the pintongue.

To that end the invention consists in the novel construction and combination of elements hereinafter described and claimed, reference being had to the accompanying drawmgs.

Figure 1 is a plan view of the back of a blank stamped out of a sheet of metal from which the back plate of my improved cufi-pin is formed. Fig. 2 is a side elevation of the back plate after it has been drawn up into its complete form. Fig. 3 is a top view of the same. Fig. 4 is a sectional view on the line m0c, Fig. 3, on an enlarged scale. Fig. 5 is a side elevation of the front or ornamental portion of the pin. Fig. 6 is a central longitudinal section of the completed pin. Fig. 7 is a sectional view on the line y-y, Fig. 6, on an enlarged scale. Fig. Sis a sectional view on the line 2-2, Fig. 6, on an enlarged scale.

Referring to the drawings, 1 represents the blank from which the back plate of the cuffpin is formed, said blank being stamped out from a strip of sheet metal by means of a suitable die and plunger. The blank is provided at one end with an enlargement 2 and at the other end with the oppositely disposed lateral ears or projections 3 and the short tail-piece 4E. The lateral ears or projections 3 are each provided with a forwardly extending beveled projection 5, as shown in Fig. 1, for a purpose to be hereinafter described.

The blank 1, after it has been cut from the sheet stock, is operated upon by a suitable die and plunger, which operation rolls over the enlargement 2 to form the pin-catch 6. In the same operation the lateral ears 3 are bent up at right angles to the body portion Specification of Letters Patent.

Patented Sept. 1, 1908.

Serial No. 419,114-

to form the hinge-members 7 of the completed pin, and the end portion of blank 1, which lies beneath said hinge members 7, is bent upward above the level of the body portion of said blank and the tail-piece 4 is bent downward, thereby forming the bearing portion 8, all as shown in Fig. 2. The beveled projections 5 are provided with an outward bend 5 at their junction with the hinge-members 7 which makes the opening between said beveled projections 5 wider than the opening between said hinge-members 7, as shown in Fig. 3. Mounted in the hingemembers 7 is a suitable pin-tongue 9 The front or ornamental portion of the pin consists of an elliptical cup-shaped member 10, the sides of which are higher throughout their central portions 11 than at their end portions 12, as shown in Fig. 5. In assembling the two parts of the pin, the back plate in its completed form, shown in Fig. 2, is placed within the cup-shaped front portion 1 0, and the central portions 11 of the sides of said front portion are rolled over and their edges clamped against the inner surface of the body portion of the blank 1, as shown in Figs. 7 and 8.

As will be seen in Fig. 6 the ends of the central portions 11 are wrapped around the projections 5, said projections thus serving as an additional means for fastening the back plate to the front portion 10.

Referring to Fig. 6, it will be seen that the right angle fulcrum point 13 of the pin-tongue 9 will, in turning said pin-tongue to closed position, bear upon the top of the bearing portion 8 of the back plate and tend to force said portion downward into the cup-shaped member 10, but any such pressure will spring the free end or tail-piece 4 lengthwise, so that it will impinge all the harder against the end of said cup-shaped member. As the bearing portion 8 cannot move laterally under such pressure, the tendency is for it to bend or buckle at its inner end, and this is prevented by the forward projections 5.

l/Vith the above construction the cuff-pin produced is extremely strong and efficient and the necessity of bending over the ends of the front portion upon projections formed on the back plate is obviated. It will be understood that the forward projections 5 may be of any desired length and shape, it being only necessary that they be of such a construction as to strengthen the body portion of the back portion at such point.

plate at the point where said body portion is most liable to buckle from the strain of the pin-tongue when submitted to pressure, said projections serving as braces for the body It will also be understood that other changes may be made in the details of construction without departing from the spirit and scope of my invention as defined by the appended claims.

What I claim as my invention and desire to secure by Letters Patent is:

1. In an article of the class described, the combination, with a cup-shaped front por tion, of a back plate secured therein, said back plate being provided with a pin-catch and a hinge-member, said hinge-member hav ing a forwardly extending projection be tween said hinge-member and the body por tion of said back plate.

2. In an article of the class described, the combination, with a cup-shaped front por tion, of a back plate secured therein, said back plate being provided at one end with a gin-catch and at the other end with two inge-members, both of said hinge-members being provided with forwardly extending beveled projections between said hinge-members and the body portion of said back plate.

3. In an article of the class described, the combination, with a cup-shaped front portion having the sides thereof higher than the ends, of a back plate provided with two hinge-members, each having a forwardly extending projection, the sides of the cupshaped front portion being wrapped around said forward projections.

4. In an article of the class described, the combination, with a cup-shaped front por tion, of a back plate secured therein, said back plate being provided with a pin-catch, two hinge-members, a pin-tongue pivoted in said hinge-members, and a forward projection from each of said hinge-members, said forward projection being integral with the body portion.

5. In an article of the class described, the combination, with a cup-shaped front por tion, of a back plate secured therein, said back plate being provided with a pin-catch and two hinge-members, said hinge-members each having an outwardly and forwardly extending projection which joins the body portion of the back plate with said hinge-member.

6. A back plate for cuff-pins and similar articles comprising a body portion, a pincatch and a pair of hingemembers formed integral with said body portion, and a forwardly extending projection formed integral with each of said hinge-members and with the body portion.

7. A back plate for cuff-pins and similar articles comprising a body portion provided with a pin-catch, a pair of hinge-members, a bearing portion in said body portion beneath said hinge-members, and a brace between each hinge-member and the body portion at the forward end of said bearing portion.

ANDREW ROBERTSON.

Witnesses:

W. H. TnUnsToN, J. H. THURSTON. 

